this.ua=navigator.userAgent.toLowerCase();
	var ie  = (ua.indexOf("msie") != -1) && (ua.indexOf("opera") == -1);
	var ie6 = (this.ua.indexOf('msie 6') !=-1);			
	var ns4		= (document.layers);
	var ns6		= (!document.all && document.getElementById); //safari
	var ie4		= (document.all && !document.getElementById && !window.opera);
	var ie5		= (document.all && !document.fireEvent && !window.opera);
	var op7		= (window.opera && document.createComment) ;
	var w3dom	= (document.getElementById || op7); //safari
	
	this.iemac = !!(this.ie && this.ua.indexOf("mac") >= 0);
 	this.mac = !!(this.ua.indexOf("mac") >= 0);
 	this.win = !!(this.ua.indexOf("win") >= 0);
 	

	function toggle(a,b) {
		if(document.images[a]){
			document.images[a].src = eval(b+".src");
		}
	}
	
	function unblur() {
		this.blur();
	}
				
	function blurLinks() {
		if (!document.getElementById) return;
		theLinks = document.getElementsByTagName("a");
		for(i=0; i<theLinks.length; i++) {
			theLinks[i].onfocus = unblur;
		}
	}	

	// popup window
	
	function open_window(url,param,winname) {
	 
		w_toolbar = param.substr(1,1);
		w_location = param.substr(2,1);
		w_directories = param.substr(3,1);
		w_menubar = param.substr(4,1);
		w_status = param.substr(5,1);
		w_scrollbars = param.substr(6,1);
		w_resize = param.substr(7,1);
		win_width =  parseFloat(param.substr(8,4)).toString();
		win_height =  parseFloat(param.substr(12,4)).toString();
		win_xpos = parseFloat(param.substr(16,4)).toString();
		win_ypos =  parseFloat(param.substr(20,4)).toString();
  		
		winStats1='toolbar='+w_toolbar
		winStats1+=',location='+w_location
		winStats1+=',directories='+w_directories
		winStats1+=',menubar='+w_menubar
		winStats1+=',status='+w_status
		winStats1+=',scrollbars='+w_scrollbars
		winStats1+=',resizable='+w_resize
		winStats1+=',width='+win_width
		winStats1+=',height='+win_height

		if (navigator.appName.indexOf("Microsoft")>=0) {
			winStats1+=',left='
			winStats1+=win_xpos
			winStats1+=',top='
			winStats1+=win_ypos
		}else{
			winStats1+=',screenX='
			winStats1+=win_xpos
			winStats1+=',screenY='
			winStats1+=win_ypos
		}
  	
  		//alert(winStats1);
		new_window=window.open(url,winname,winStats1);
		new_window.moveTo(win_xpos,win_ypos);  // moving window to the screencenter (ie 4.5 mac!!)
		new_window.focus();
	}