function checkBrowser(){
	this.ver=navigator.appVersion
	this.dom=document.getElementById?1:0
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && 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;
	this.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5)
	return this
}
bw=new checkBrowser()

//Show layers
function show(id)
{
this.css=bw.dom? document.getElementById(id).style:bw.ie4?document.all[id].style:bw.ns4?document.layers[id]:0;	
this.css.visibility='visible'
}	
//Hide a layer
function hide(id)
{
	this.css=bw.dom? document.getElementById(id).style:bw.ie4?document.all[id].style:bw.ns4?document.layers[id]:0;	
	this.css.visibility='hidden'
}

   function changeCSS(obj, bgColor, bdColor, ftColor) {
   
   	if (document.getElementById) {
		obj.style.backgroundColor = bgColor;
		obj.style.borderColor = bdColor;
		obj.style.color = ftColor;
		
	}
}