function jinumber(name)
{
	var userval;
	userval=document.getElementById(name).value;
	if(3000-userval.length>=0)
	{
		document.getElementById("jinumber").innerHTML=3000-userval.length;
	}else
	{
		document.getElementById(name).value=userval.substring(0,3000);
	}
}


function checkfile(thisvalue,f,textname)
{
	var filenameadd;
	filenameadd=thisvalue.substr(thisvalue.lastIndexOf(".")+1,thisvalue.length);
	filenameadd=filenameadd.toLowerCase();
	if((filenameadd!="rar")&&(filenameadd!="doc")&&(filenameadd!="pdf")&&(filenameadd!="zip")&&(filenameadd!="xls")&&(filenameadd!="ppt"))
	{
		alert("请核对您上传的文件格式是否为rar,doc,pdf,zip,xls,ppt");
		document.f.textname.value="";
	}
	else
	{
		document.all.showf.innerHTML=thisvalue.substr(0,8)+"..."+thisvalue.substr(thisvalue.lastIndexOf("\\"),thisvalue.length);
	}
}


function checkfile1(thisvalue,f,textname)
{
	var filenameadd;
	filenameadd=thisvalue.substr(thisvalue.lastIndexOf(".")+1,thisvalue.length);
	filenameadd=filenameadd.toLowerCase();
	if((filenameadd!="rar")&&(filenameadd!="doc")&&(filenameadd!="pdf")&&(filenameadd!="zip")&&(filenameadd!="xls")&&(filenameadd!="ppt"))
	{
		alert("请核对您上传的文件格式是否为rar,doc,pdf,zip,xls,ppt");
		document.f.textname.value="";
	}
	else
	{
		document.all.showf.innerHTML=thisvalue.substr(0,8)+"..."+thisvalue.substr(thisvalue.lastIndexOf("\\"),thisvalue.length);
	}
}