function Browser(){	
		var ua, s, i;
		this.isIE    = false;
		this.isNS    = false;
		this.version = null;
		ua = navigator.userAgent;
		s = "MSIE";
		if ((i = ua.indexOf(s)) >= 0){
			this.isIE = true;
			this.version = parseFloat(ua.substr(i + s.length));
			return;
		}
		s = "Netscape6/";
		if ((i = ua.indexOf(s)) >= 0){
			this.isNS = true;
			this.version = parseFloat(ua.substr(i + s.length));
			return;
		}
		// Treat any other "Gecko" browser as NS 6.1.
		s = "Gecko";
		if ((i = ua.indexOf(s)) >= 0) {
			this.isNS = true;
			this.version = 6.1;
			return;
		}
	}
	
	var browser = new Browser();
	// Global object to hold drag information.
	var dragObj = new Object();
	dragObj.zIndex = 0;

	function dragStart(event, id){
		var el;
		var x, y;
		// If an element id was given, find it. Otherwise use the element being
		// clicked on.
		if (id)
			dragObj.elNode = document.getElementById(id);
		else{
			if (browser.isIE)
				dragObj.elNode = window.event.srcElement;
			if (browser.isNS)
				dragObj.elNode = event.target;
			// If this is a text node, use its parent element.
			if (dragObj.elNode.nodeType == 3)
				dragObj.elNode = dragObj.elNode.parentNode;
		}
		// Get cursor position with respect to the page.
		if (browser.isIE){
			x = window.event.clientX + document.documentElement.scrollLeft + document.body.scrollLeft;
			y = window.event.clientY + document.documentElement.scrollTop + document.body.scrollTop;
		}
		if (browser.isNS){
			x = event.clientX + window.scrollX;
			y = event.clientY + window.scrollY;
		}
	
		// Save starting positions of cursor and element.
		dragObj.cursorStartX = x;
		dragObj.cursorStartY = y;
		dragObj.elStartLeft  = parseInt(dragObj.elNode.style.left, 10);
		dragObj.elStartTop   = parseInt(dragObj.elNode.style.top,  10);
		if (isNaN(dragObj.elStartLeft)) dragObj.elStartLeft = 0;
		if (isNaN(dragObj.elStartTop))  dragObj.elStartTop  = 0;
		// Update element's z-index.
		dragObj.elNode.style.zIndex = ++dragObj.zIndex;
		// Capture mousemove and mouseup events on the page.
		if (browser.isIE){
			document.attachEvent("onmousemove", dragGo);
			document.attachEvent("onmouseup",   dragStop);
			window.event.cancelBubble = true;
			window.event.returnValue = false;
		}
		if (browser.isNS){
			document.addEventListener("mousemove", dragGo,   true);
			document.addEventListener("mouseup",   dragStop, true);
			event.preventDefault();
		}
	}
	
	function dragGo(event){
		var x, y;
		// Get cursor position with respect to the page.
		if (browser.isIE){
			x = window.event.clientX + document.documentElement.scrollLeft + document.body.scrollLeft;
			y = window.event.clientY + document.documentElement.scrollTop + document.body.scrollTop;
		}
	
		if (browser.isNS){
			x = event.clientX + window.scrollX;
			y = event.clientY + window.scrollY;
		}
	
		// Move drag element by the same amount the cursor has moved.
		dragObj.elNode.style.left = (dragObj.elStartLeft + x - dragObj.cursorStartX) + "px";
		dragObj.elNode.style.top  = (dragObj.elStartTop  + y - dragObj.cursorStartY) + "px";
		if (browser.isIE){
			window.event.cancelBubble = true;
			window.event.returnValue = false;
		}
	
		if (browser.isNS)
			event.preventDefault();
	}
	
	function dragStop(event){
		// Clear the drag element global.
		dragObj.elNode = null;
		
		// Stop capturing mousemove and mouseup events.
		if (browser.isIE){
			document.detachEvent("onmousemove", dragGo);
			document.detachEvent("onmouseup",   dragStop);
		}
	
		if (browser.isNS){
			document.removeEventListener("mousemove", dragGo,   true);
			document.removeEventListener("mouseup",   dragStop, true);
		}
	}
	function Close(vCapa){
		document.getElementById(vCapa).style.display = 'none';
	}	
	function showFlash(vFile,vWidth,vHeight){
		document.write('<object classid=clsid:D27CDB6E-AE6D-11cf-96B8-444553540000 codebase=http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0 width='+vWidth+' height='+vHeight+'>');
		document.write('<param name=movie value="'+vFile+'"/>');
		document.write('<param name=quality value=high /> <param name=menu value=false>');
		document.write('<param name=wmode value=transparent>');
		document.write('<embed src="'+vFile+'" quality=high pluginspage=http://www.macromedia.com/go/getflashplayer type=application/x-shockwave-flash width='+vWidth+' height='+vHeight+' wmode="transparent"></embed>');
		document.write('</object>'); 	
	}
	function showFlashT(vFile,vWidth,vHeight){
		document.write('<object classid=clsid:D27CDB6E-AE6D-11cf-96B8-444553540000 codebase=http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0 width='+vWidth+' height='+vHeight+'>');
		document.write('<param name=movie value="'+vFile+'"/>');
		document.write('<param name=quality value=high /> <param name=menu value=false>');
		document.write('<param name=wmode');
		document.write('<embed src="'+vFile+'" quality=high pluginspage=http://www.macromedia.com/go/getflashplayer type=application/x-shockwave-flash width='+vWidth+' height='+vHeight+'></embed>');
		document.write('</object>'); 	
	}