// jianrong IE,firefox,Sa 
var isIE = false;
var isFF = false;
var isSa = false;

if ((navigator.userAgent.indexOf("MSIE") > 0) && (parseInt(navigator.appVersion) >= 4)) isIE = true;
if (navigator.userAgent.indexOf("Firefox") > 0) isFF = true;
if (navigator.userAgent.indexOf("Safari") > 0) isSa = true;

function IsNumber(e) {
    var key;
    iKeyCode = window.event ? e.keyCode : e.which;
    if (!(((iKeyCode >= 48) && (iKeyCode <= 57)) || (iKeyCode == 13) || (iKeyCode == 37) || (iKeyCode == 8) || (iKeyCode == 0))) {
        if (isIE) {
            e.returnValue = false;
        }
        else {
            e.preventDefault();
        }
    }
}    

function IsEmail(text)
{
	var reg = new RegExp("^[\\w-]+(\\.[\\w-]+)*@[\\w-]+(\\.[\\w-]+)+$"); 
	var r = text.match(reg);

	if(r == null) 
	{
		return false;
	}
	else
	{
		return true;
	}
}


function GoHomePage()
{
    var url=window.location.href;
    var start=url.lastIndexOf("/");
    var end=url.length;
    var newUrl=url.substring(0,start);
    var replaceStr="";
    if(url.indexOf("customerhome")>0)
    {
        replaceStr=url.substring(start+1,end);
        newUrl=newUrl+"/products.aspx";
    }
    else if(url.indexOf("statistics.aspx")>0 || url.indexOf("contractoptions.aspx")>0 || url.indexOf("contracttypes.aspx")>0 || url.indexOf("adminhome.aspx")>0)
    {
        newUrl="/adminhome.aspx";
    }
    else
    {
        newUrl="/";
    }
    window.location.href=newUrl;
}