function regInput(obj, reg, inputStr)
{
    var docSel = document.selection.createRange();
    if (docSel.parentElement().tagName != "INPUT") return false;
    oSel = docSel.duplicate();
    oSel.text = "";
    var srcRange = obj.createTextRange();
    oSel.setEndPoint("StartToStart", srcRange);
    var str = oSel.text + inputStr + srcRange.text.substr(oSel.text.length);
    return reg.test(str);
}

function QueryString(panStr)
{ 
	var sorStr = document.location.search;
	var vStr=""; 
	if (sorStr==null || sorStr=="" || panStr==null || panStr=="") return vStr; 
	sorStr = sorStr.toLowerCase();
	panStr += "="; 
	var itmp=sorStr.indexOf(panStr); 
	if (itmp<0){return vStr;} 
	sorStr = sorStr.substr(itmp + panStr.length); 
	itmp=sorStr.indexOf("&"); 
	if (itmp<0)
	{
		return sorStr; 
	} 
	else 
	{
		sorStr=sorStr.substr(0,itmp); 
		return sorStr;
	}
}