// JavaScript Document
function changeclassandposition(str,str1,str2)
{
	var myobj1 = document.getElementById(str1);	
	
	
	if (str!="")
	{
	var mytableleft = 0;
	var e_l = str;
	while(e_l)
	{
	mytableleft = mytableleft + e_l.offsetLeft;
	e_l = e_l.offsetParent;
	}
	myobj1.style.left = mytableleft ;
	}
	
	
	
	if (myobj1.offsetHeight > 150)
	{
		myobj1.style.height = 150;
		myobj1.style.overflowY = "auto";
	}
	myobj1.className = str2;
}

function isEmail(s) {
	if (s.length > 100)	return false;
	if (s.indexOf("'")!=-1 || s.indexOf("/")!=-1 || s.indexOf("\\")!=-1 || s.indexOf("<")!=-1 || s.indexOf(">")!=-1) return false;
    s = s.replace('(', '');
    s = s.replace(')', '');
    s = s.replace('（', '');
    s = s.replace('）', '');
	var regu = "^(([0-9a-zA-Z]+)|([0-9a-zA-Z]+[_.0-9a-zA-Z-]*[_.0-9a-zA-Z]+))@([a-zA-Z0-9-]+[.])+(.+)$";
	var re = new RegExp(regu);
	if (s.search(re) != -1)
		return true;
	else
		return false;
	}
	
function check(){
	if(document.form1.title.value=="")
	{
		alert("标题不能为空!");
		document.form1.title.focus();
		return false;
	}
	if (document.form1.txt.value=="")
	{
		alert("请填写内容!");
		document.form1.txt.focus();
		return false;
	}
	return true;
}
						function showselect()
						{
							
							document.all("select2").style.display="";
							//document.all("select2").focus();
							document.all("sel1").style.display="none";
						}
						function shownotselect()
						{
							document.all("select2").style.display="none";
							document.all("sel1").style.display="";
														
						}
						function sel()
						{
							if(document.activeElement.id=="select2")
							{
									
							}
							else
							{
								document.all("select2").style.display="none";
								document.all("sel1").style.display="";
							}
						}
						function changselect()
						{
							document.all("sel1").style.display="";
							document.all("select2").style.display="none";
						}