function index_soso(num){
for(var id = 1;id<=7;id++)
{
	var bb="ltitle"+id;
	if(id==num)
	document.getElementById(bb).className="s1";
	else
	document.getElementById(bb).className="";
} 
	if(num==1)
  	{
		document.form_indexsoso.keyword.value="产品搜索：请输入关键词"; 
		document.form_indexsoso.keyword.style.color="#999999";
		document.form_indexsoso.search.value="productshow"; 
	}
	if(num==2)
	{
		document.form_indexsoso.keyword.value="求购搜索：请输入关键词";
		document.form_indexsoso.keyword.style.color="#999999";
		document.form_indexsoso.search.value="buy";
	}
	if(num==3)
	{
		document.form_indexsoso.keyword.value="公司搜索：请输入关键词";
		document.form_indexsoso.keyword.style.color="#999999";
		document.form_indexsoso.search.value="corporation";
	}
	if(num==4)
	{
		document.form_indexsoso.keyword.value="资讯搜索：请输入关键词";
		document.form_indexsoso.keyword.style.color="#999999";
		document.form_indexsoso.search.value="news";
	}
	if(num==5)
	{
		document.form_indexsoso.keyword.value="展会搜索：请输入关键词";
		document.form_indexsoso.keyword.style.color="#999999";
		document.form_indexsoso.search.value="exhi";
	}
	if(num==6)
	{
		document.form_indexsoso.keyword.value="人才搜索：请输入关键词";
		document.form_indexsoso.keyword.style.color="#999999";
		document.form_indexsoso.search.value="job";
	}
	if(num==7)
	{
		document.form_indexsoso.keyword.value="压铸学院资讯搜索：请输入关键词";
		document.form_indexsoso.keyword.style.color="#999999";
		document.form_indexsoso.search.value="college";
	}
}

function top_soso(num){
for(var id = 1;id<=4;id++)
{
	var bb="ltitle"+id;
	if(id==num)
	document.getElementById(bb).className="soso1";
	else
	document.getElementById(bb).className="";
} 
	if(num==1)
  	{
		document.form_so.keyword.value="产品搜索：请输入关键词"; 
		document.form_so.search.value="productshow"; 
	}
	if(num==2)
	{
		document.form_so.keyword.value="求购搜索：请输入关键词";
		document.form_so.search.value="buy";
	}
	if(num==3)
	{
		document.form_so.keyword.value="资讯搜索：请输入关键词";
		document.form_so.search.value="news";
	}
	if(num==4)
	{
		document.form_so.keyword.value="公司搜索：请输入关键词";
		document.form_so.search.value="corporation";
	}

}


function moju_soso(num){
for(var id = 22;id<=25;id++)
{
	var bb="ltitle"+id;
	if(id==num)
	document.getElementById(bb).className="soso1";
	else
	document.getElementById(bb).className="";
} 
	if(num==22)
  	{
		document.form_so.keyword.value="产品搜索：请输入关键词"; 
		document.form_so.search.value="productshow"; 
	}
	if(num==23)
	{
		document.form_so.keyword.value="求购搜索：请输入关键词";
		document.form_so.search.value="buy";
	}
	if(num==24)
	{
		document.form_so.keyword.value="资讯搜索：请输入关键词";
		document.form_so.search.value="news";
	}
	if(num==25)
	{
		document.form_so.keyword.value="公司搜索：请输入关键词";
		document.form_so.search.value="corporation";
	}

}

function college_soso(num){
for(var id = 1;id<=4;id++)
{
	var bb="ltitle"+id;
	if(id==num)
	document.getElementById(bb).className="soso1";
	else
	document.getElementById(bb).className="";
} 
	if(num==1)
  	{
		document.form_so.keyword.value="资讯搜索：请输入关键词"; 
		document.form_so.search.value="news"; 
	}
	if(num==2)
	{
		document.form_so.keyword.value="课件搜索：请输入关键词";
		document.form_so.search.value="course";
	}
	if(num==3)
	{
		document.form_so.keyword.value="问答搜索：请输入关键词";
		document.form_so.search.value="ask";
	}
	if(num==4)
	{
		document.form_so.keyword.value="人才搜索：请输入关键词";
		document.form_so.search.value="job";
	}

}

function login(num){

		if(num==1)
		document.getElementById("login_top").style.display="block";
		else
		document.getElementById("login_top").style.display="none";		
}

/*登陆框拖动效果*/
var Obj=''
document.onmouseup=MUp
document.onmousemove=MMove

function MDown(Object){
Obj=Object.id
document.all(Obj).setCapture()
pX=event.x-document.all(Obj).style.pixelLeft;
pY=event.y-document.all(Obj).style.pixelTop;
}

function MMove(){
if(Obj!=''){
  document.all(Obj).style.left=event.x-pX;
  document.all(Obj).style.top=event.y-pY;
  }
}

function MUp(){
if(Obj!=''){
  document.all(Obj).releaseCapture();
  Obj='';
  }
}