function write_date(){
var today=new Date();
				var hours=today.getHours();
				
				if(today.getMonth()==0){document.write("January ");}
				if(today.getMonth()==1){document.write("February ");}
				if(today.getMonth()==2){document.write("March ");}
				if(today.getMonth()==3){document.write("April ");}
				if(today.getMonth()==4){document.write("May ");}
				if(today.getMonth()==5){document.write("June ");}
				if(today.getMonth()==6){document.write("July ");}
				if(today.getMonth()==7){document.write("August ");}
				if(today.getMonth()==8){document.write("September ");}
				if(today.getMonth()==9){document.write("October ");}
				if(today.getMonth()==10){document.write("November ");}
				if(today.getMonth()==11){document.write("December ");}
				document.write(today.getDate());
				document.write(", ");
				document.write(today.getFullYear());
}
var Num = 1;
var Max = 11;  // add 1 to the array to obtain Max number
var Min = 1;

function randImage() {
		Random(Num);
		document.portrait.src = randomimgbase + "images/shared/header_pics/" + Num + ".gif";
		//alert("images/shared/header_pics/" + Num + ".gif");
}

function Random(Integer) {
        randNum = Math.random();
        Calc = ((randNum*(Max - Min)) + Min);
        Num = parseInt(Calc);
        return (Num);
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function VCat_Option()
{
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．全部类别','','TRUE');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．建筑 (Architecture)','1');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．艺术 (Arts)','2');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．生物科技 (Biotechnology)','3');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．商业/领导力 (Business/Leadership)','13');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．国防/军事 (Defense/Military)','4');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．经济 (Economics)','5');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．教育 (Education)','6');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．工程 (Engineering)','7');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．环境/能源 (Environment/Energy)','8');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．探险/旅行 (Exploration/Travel)','9');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．历史 (History)','10');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．创意/发明 (Innovation/Invention)','11');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．国际事务 (International)','12');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．媒体(Media)','14');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．医药(Medicine)','15');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．麻省理工学院(MIT)','16');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．麻省理工校友(MIT Alumnus)','21');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．国家安全(National Security)','17');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．公共政策(Public Policy)','18');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．科学(Science)','19');
document.HostCatForm.VCat.options[document.HostCatForm.VCat.options.length] = new Option('．科技(Technology)','20');
}

function VHost_Option()
{
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．全部主办单位','','TRUE');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．ACM/IEEE','1');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．校友会 (Alumni Association)','7');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．亚太研讨会 (Asian Pacific Conference)','2');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工作家计划 (authors@MIT)','11');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．生物系所 (Biology Department)','16');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．剑桥大学与麻省理工合作中心','102');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Cambridge-MIT Institute)','102');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．全球变迁科学中心','121');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Center for Global','121');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　Change Science)','121');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．国际研究中心','17');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Center for International  Studies)','17');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工运算及系统生物学','103');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Computational and Systems Biology at MIT)','103');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工运算及系统生物学','109');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Computer Science and ','109');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　Artificial Intelligence Laboratory (CSAIL)','109');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．科技、考古与深海之深建筑研究群','86');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(DeepArch Research Group in Technology, ','86');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　Archaeology and the Deep Sea)','86');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．航空宇航系所','101');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Department of Aeronautics and Astronautics)','101');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．建筑系所 (Department of Architecture)','85');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．化学工程系所','24');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Department of Chemical Engineering)','24');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．地球、大气与行星科学系所','118');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Department of Earth, ','118');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　Atmospheric and Planetary Sciences) ','118');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工数学系所','25');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Department of Mathematics at MIT) ','25');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．都市研究与规划系统 ','71');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Department of Urban Studies and Planning)','71');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．Deshpande科技创新中心 ','90');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Deshpande Center for Technical Innovation)','90');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．经济系所(Economics Department)','26');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．电机与资讯工程系所','27');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Electrical Engineering and','27');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Computer Science Department)','27');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．能源研究谘议会','136');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Energy Research Council)','136');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．工程系统组(Engineering Systems Division) ','30');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．福特/麻省理工诺贝尔得主系列讲座 ','42');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Ford/MIT Nobel Laureate Lecture Series)','42');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．全球机会探索联盟 ','31');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Global Opportunity (GO)','31');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　Expeditionary Alliance)','31');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．哈佛麻省理工卫生科学技术部','37');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Harvard-MIT Division of','37');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　Health Sciences and Technology) ','37');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．iCampus','145');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．产学合作计划(Industrial Liaison Program)','38');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．计算机科学实验室','55');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Laboratory for Computer Science) ','55');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．能源与环境实验室','129');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Laboratory for Energy and the Environment)','129');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．前瞻航空计划','140');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Lean Aerospace Initiative)','140');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．国际学习网络联盟','110');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Learning International Networks Consortium)','110');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．Lemelson-麻省理工合作计划','12');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Lemelson-MIT Program)','12');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．文学班(Literature)','148');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．Margaret MacVicar卓越教师计划','56');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Margaret MacVicar Faculty Fellows Program)','56');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻州太空补助联盟','57');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Massachusetts Space Grant Consortium)','57');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工McGovern脑研究所','58');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(McGovern Institute for Brain Research at MIT)','58');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工活动委员会','132');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Activities Committee, MITAC)','132');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．马丁路德．金博士周年纪念早餐会','63');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Annual Breakfast Celebrating the Life ','63');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　and Legacy of Dr. Martin Luther King, Jr.)','63');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工生物医学创意中心','126');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Center for Biomedical Innovation)','126');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工癌症研究中心','128');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Center for Cancer Research)','128');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工通讯论坛','69');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Communications Forum)','69');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工国中小教育委员会','23');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Council on Primary','23');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　and Secondary Education)','23');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工企业论坛(MIT Enterprise Forum)','107');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工都市设计与发展联合计划','3');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Joint Program in','3');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　City Design and Development)','3');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工Kavli航空与太空研究所','125');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Kavli Institute for Astrophysics ','125');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　and Space Research)','125');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工领导力中心(MIT Leadership Center)','131');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工图书馆(MIT Libraries)','13');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工List视觉艺术中心','111');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT List Visual Arts Center)','111');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工博物馆(MIT Museum)','34');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工核子工程与科学系所','130');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Nuclear Science and Engineering)','130');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工写作与人文研究计划','79');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Program in Writing','79');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　and Humanistic Studies)','79');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工对Katrina飓风的回应','127');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Response to Hurricane Katrina)','127');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工理学院(MIT School of Science)','59');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工史隆管理学院','39');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Sloan School of Management)','39');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工科技与政策计划','29');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Technology and Policy Program)','29');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工西半球计划','62');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(MIT Western Hemisphere Project)','62');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．政府与社区关系办公室','49');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Office of Government and Community Relations)','49');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．艺术办公室(Office of the Arts)','108');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．开放式课程(OpenCourseWare)','114');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．Palestine@MIT','142');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．物理系所(Physics Department)','64');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．Picower学习与记忆研究所','135');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Picower Institute','135');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　for Learning and','135');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　Memory)','135');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．贫穷行动实验室(Poverty Action Lab)','124');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．科学、科技与社会计划','73');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Program in Science, Technology and Society)','73');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．人权与正义计划','81');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Program on Human Rights and Justice)','81');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工电子研究实验室','65');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Research Laboratory of Electronics at MIT)','66');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．工学院(School of Engineering)','66');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．人文艺术与社会科学院','67');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(School of Humanities, Arts, and Social Sciences)','67');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．理学院(School of Science) ','96');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．都市与区域研究特别计划，','117');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　与Hubert H. Humphrey 院士计划','117');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Special Program in Urban','117');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　and Regional Studies (SPURS) &','117');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　Hubert H. Humphrey Fellowship Program)','117');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．科技与文化论坛(Technology and Culture Forum) ','75');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．麻省理工科技与文化论坛 ','82');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Technology and Culture Forum at MIT) ','82');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．科技与政策计划','138');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Technology and','138');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　Policy Program)','138');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．科技评论(Technology Review) ','78');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．落成委员会 (The Inauguration Committee)','123');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('．Whitehead生物医学研究所','100');
document.HostCatForm.VHost.options[document.HostCatForm.VHost.options.length] = new Option('　(Whitehead Institute for Biomedical Research)','100');
}