// JavaScript Document
temp="";
function myshow(idnum)
{        
	if(eval("t"+idnum+".style.display")==""){	 
	    eval("t"+idnum+'.style.display="none"');
	    eval("document.m"+idnum+".src='/images/+.gif'");
	    temp="";
		}
	else{	   
		eval("t"+idnum+".style.display=''");
		eval("document.m"+idnum+".src='/images/-.gif'");		
		}

}
function searchf(){
	 if(searchs.sclass.value==1){
		 searchs.action="/other/news_list.asp";
		 }
	 if(searchs.sclass.value==2){
		 searchs.action="/other/kecheng.asp";
		 }
	searchs.submit();
	}
function login(){
	if(form2.username.value==""){
		alert("请输入用户名");
		return false;
		}
		if(form2.pwd.value==""){
		alert("请输入用户密码");
		return false;
		}
	form2.submit();
	}
function IsNumber(string,sign) 
{ 
var number; 
if (string==null) return false; 
if ((sign!=null) && (sign!='-') && (sign!='+')) 
{ 
alert('IsNumber(string,sign)的参数出错：\nsign为null或"-"或"+"'); 
return false; 
} 
number = new Number(string); 
if (isNaN(number)) 
{ 
return false; 
} 
else if ((sign==null) || (sign=='-' && number<0) || (sign=='+' && number>0)) 
{ 
return true; 
} 
else 
return false; 
} 
function email(mailv){
if(mailv==""||mailv.indexOf("@")==-1||mailv.indexOf(".")==-1)
{
return false;
}else
return true;
}
sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}