function checkBrowser()
{	
	this.ver=navigator.appVersion;
	this.dom=document.getElementById?1:0;
	this.pseudo = navigator.appCodeName;
	this.ie8=(this.ver.indexOf("MSIE 8")>-1 && this.dom)?1:0;
	this.ie7=(this.ver.indexOf("MSIE 7")>-1 && this.dom)?1:0;
	this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom)?1:0;
	this.ie55=((this.ver.indexOf("MSIE 5.5")>-1 || this.ie6) && this.dom)?1:0;
	this.ie5=((this.ver.indexOf("MSIE 5")>-1 || this.ie5 || this.ie6) && this.dom)?1:0;
	this.ie4=(document.all && !this.dom)?1:0;
	this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;
	this.ns4=(document.layers && !this.dom)?1:0;
	//safari
	this.sfr=(this.ver.toLowerCase().indexOf("safari")>-1 && !this.dom)?1:0;
	this.ie4plus=(this.ie6 || this.ie5 || this.ie4);
	this.ie5plus=(this.ie6 || this.ie5)	;
	//mozilla
	this.ff = (this.pseudo.toLowerCase().indexOf("mozilla")>-1 && !this.ie8 && !this.ie7 && !this.ie6 && !this.ie55 && !this.ie4)?1:0;
	this.bw=(this.ie8 || this.ie7 || this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns5 || this.ff);
	
	
	return this;
}
			
bw = new checkBrowser();
			
if (!document.getElementById) 
{
document.getElementById = getObjectById;
}
			
function getObjectById(ID) 
{
	var obj;
	if (bw.dom)
		return document.getElementById(ID);
	else if (bw.ie4)
		return document.all(ID);
	else if (bw.ns4)
		return eval('document.' + ID);
}
			
function getObjectByIdParent(ID) 
{
	var obj;
	if (bw.dom)
		return parent.document.getElementById(ID);
	else if (bw.ie4)
		return parent.document.all(ID);
	else if (bw.ns4)
		return eval('parent.document.' + ID);
}

function cancelBubble(netEvent) 
{
    if (document.all) 
    {
        window.event.cancelBubble = true;
    } 
    else 
    {
        netEvent.cancelBubble = true;
    }
}