//This function opens a popup window 

function openWin(childURL, childHeight, childWidth, scrollBars, toolbars, resizable) 
{
    var childWin;
    var childLeft = (screen.width - childWidth)/2;
    var childTop = (screen.height - childHeight)/2;

    childWin = window.open(childURL, '', 'toolbar='+toolbars+',location=no,directories=no,status=no,menubar=no,scrollbars='+ scrollBars +
        ',resizable='+resizable+',width='+ childWidth +',height='+ childHeight +',top='+childTop+',left='+childLeft);	
	
    childWin.opener = self;
	
    return childWin;
}

function IsValidEmail(email)
{
    var reEmail = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if(reEmail.test(email)) 
	{
	    return true;
	}
	else
	{
		return false;
	}
}

function IsNumeric(strString)
{
	var strValidChars = "0123456789";
	var strChar;
	var blnResult = true;

	for (i = 0; i < strString.length && blnResult == true; i++)
	{
		strChar = strString.charAt(i);
		if (strValidChars.indexOf(strChar) == -1)
		{
			blnResult = false;
		}
	}
	return blnResult;
}