function dopost(){
	var key = document.getElementById('key');
	key.value = key.value.replace(/(^\s*)|(\s*$)/g, "");
	var type = document.getElementById('type');
	if(key.value!=null && key.value!='')
	{
		if(type.value == 'company_list')
			window.open('/company_list/search/'+key.value+'.htm','_self');
		else
			window.open('/trade/search/'+key.value+'.htm','_self');
		return false;
	}
		else
	{
		alert('请输入关健词');
		return false;
	}
}
function getoffset(strsearch,substr,offset){ 
	var sublen=substr.length; 
	var reval=strsearch.indexOf(substr,offset) 
	if (reval==-1) return reval;//没找到，返回-1 
	reval=reval+sublen+1; 
	if (strsearch.charAt(reval-1)=="=") return reval; 
	return getoffset(strsearch,substr,reval); 
} 

function request(getvar){ 
	var strRequest,offset,endpoint,returnvar 
	strRequest=window.location.search; 
	strRequest="&"+strRequest.substring(1,strRequest.length); 
	if (getvar.search("=|&")!=-1)return ""; 
	getvar="&"+getvar; 
	offset=getoffset(strRequest,getvar,0); 
	if (offset==-1) return ""; 
	endpoint=strRequest.indexOf("&",offset); 
	if (endpoint==-1)endpoint=strRequest.length; 
	returnvar=strRequest.substring(offset,endpoint); 
	return returnvar; 
} 

function getvalue(){
var key = request('key');
if(key!='')
document.getElementById('key').value = key;
}