function trimString(l_common_string){         
	var RegExp1 = new RegExp("[ \n\r]", "g");
	return l_common_string.replace(RegExp1, "");
}



function logOut(){
	if (confirm("您确定要退出系统吗？")){
		document.location = "/cq/logout.asp";
	}
}



function getFileType(fname){
	var pos = fname.lastIndexOf(".");
	if(pos == -1){
		fext = "";
		return fext;
	} else {
		fext = fname.substr(pos+1);
		fext = fext.toUpperCase();
		if (fext == "JPG"){
			return fext;
		} else if( fext == "JPEG" ) {
			return fext;
		} else if( fext == "GIF" ) {
			return fext;
		} else if ( fext == "BMP" ) {
			return fext;
		} else {
			fext = "";
			return fext;
		}
	}
}


function checkForm()
{
  if(tringString(document.form1.username)=="")
  {
	  alert("用户名不能为空！");
	  document.form1.username.focus();
	  return false;
  }

  if(tringString(document.form1.userpassword)=="")
  {
	  alert("密码不能不能为空！");
	  document.form1.userpassword.focus();
	  return false;
  }

  document.form1.submit();
}


function newin(width,height,url,name) {
  window.open(url,name,'statusbar=no,scrollbars=no,status=no,resizable=no, top=0, left=0, width='+width+',height='+height)
}


function checkemail(email)
	{
		var str=email;
		var i=str.indexOf("@");
		var j=str.indexOf(".");
        var k=str.length-1-j;
		if((i<1)||(i-j>1)||(j<1)||(k<0))  
		    return true;
		else
			return false;
	}