function Is(){
   var agent = navigator.userAgent.toLowerCase();
    this.major = parseInt(navigator.appVersion);
    this.minor = parseFloat(navigator.appVersion);
    this.ns  = ((agent.indexOf('mozilla')!=-1) && ((agent.indexOf('spoofer')==-1) && (agent.indexOf('compatible') == -1)));
    this.ns2 = (this.ns && (this.major == 2));
    this.ns3 = (this.ns && (this.major == 3));
    this.ns4b = (this.ns && (this.minor < 4.04));
    this.ns4 = (this.ns && (this.major >= 4));
    this.ie   = (agent.indexOf("msie") != -1);
    this.ie3  = (this.ie && (this.major == 2));
    this.ie4  = (this.ie && (this.major >= 4));
    this.op3 = (agent.indexOf("opera") != -1);
    this.win   = (agent.indexOf("win")!=-1);
    this.mac   = (agent.indexOf("mac")!=-1);
    this.unix  = (agent.indexOf("x11")!=-1);
	}

	function verifyCompatibleBrowser(){
    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
	}

	function ConstructObject(obj,nest){ 
		nest=(!nest) ? '':'document.'+nest+'.' 
		this.el=bw.dom?document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+'document.'+obj):0; 
		this.css=bw.dom?document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+'document.'+obj):0; 
		this.scrollHeight=bw.ns4?this.css.document.height:this.el.offsetHeight 
		this.clipHeight=bw.ns4?this.css.clip.height:this.el.offsetHeight 
		this.up=MoveAreaUp;this.down=MoveAreaDown; 
		this.MoveArea=MoveArea; this.x; this.y; 
		this.obj = obj + "Object" 
		eval(this.obj + "=this") 
		return this 
	}

	function MoveArea(x,y){ 
		this.x=x;this.y=y 
		this.css.left=this.x 
		this.css.top=this.y 
	}
 
	function MoveAreaDown(move){ 
   if(this.y>-this.scrollHeight+objContainer.clipHeight){ 
     this.MoveArea(0,this.y-move) 
     if(loop)
			setTimeout(this.obj+".down("+move+")",speed) 
		} 
	}

	function MoveAreaUp(move){ 
		if(this.y<0){ 
  		this.MoveArea(0,this.y-move)
			if(loop)
				setTimeout(this.obj+".up("+move+")",speed) 
		}
	}
 
	function PerformScroll(speed){ 
		if(initialised){ 
			loop=true; 
			if(speed>0)
				objScroller.down(speed) 
			else
				objScroller.up(speed) 
		}
	}
 
	function CeaseScroll(){ 
  	loop=false 
 		if(timer)
			clearTimeout(timer) 
	}


function showerror(message){
	alert(message);
}

function checkLength(maxlength,name){
	var sztemp = escape(name.value);
	if (maxlength==0){
		name.blur();
	}
	else if(sztemp.length > maxlength){
		alert("This field has exceeded the maximum length");
		sztemp=sztemp.substring(0,maxlength);
		name.value=unescape(sztemp);
	}
}