// JavaScript Document

	function $(id)
	{return document.getElementById(id);}

	function posDisplayOn(x,y,imgname,divname) {
	//x = posicion horizontal
	//y = posicion vertical
	//imgname = las cordenadas son respecto a una imagen o links 
	//divname = bloque a mostrar

		var obj = document.images[imgname] || document.links[imgname] || document.anchors[imgname];
		
		x = moveXbySlicePos (x, obj);
		$(divname).style.left = x + 'px';

		y = moveYbySlicePos (y, obj);
		$(divname).style.top = y + 'px';

	}

	function moveXbySlicePos (x, img) { 
		if (!document.layers) {
			var onWindows = navigator.platform ? navigator.platform == "Win32" : false;
			var macIE45 = document.all && !onWindows && getExplorerVersion() == 4.5;
			var par = img;
			var lastOffset = 0;
			while(par){
				if( par.leftMargin && ! onWindows ) x += parseInt(par.leftMargin);
				if( (par.offsetLeft != lastOffset) && par.offsetLeft ) x += parseInt(par.offsetLeft);
				if( par.offsetLeft != 0 ) lastOffset = par.offsetLeft;
				par = macIE45 ? par.parentElement : par.offsetParent;
			}
		} else if (img.x) x += img.x;
		return x;
	}
	
	function moveYbySlicePos (y, img) {
		if(!document.layers) {
			var onWindows = navigator.platform ? navigator.platform == "Win32" : false;
			var macIE45 = document.all && !onWindows && getExplorerVersion() == 4.5;
			var par = img;
			var lastOffset = 0;
			while(par){
				if( par.topMargin && !onWindows ) y += parseInt(par.topMargin);
				if( (par.offsetTop != lastOffset) && par.offsetTop ) y += parseInt(par.offsetTop);
				if( par.offsetTop != 0 ) lastOffset = par.offsetTop;
				par = macIE45 ? par.parentElement : par.offsetParent;
			}		
		} else if (img.y >= 0) y += img.y;
		return y;
	}
	
	function position(x,y,imgname,divname){
		var obj = FIND(imgname) || document.images[imgname] || document.links[imgname] || document.anchors[imgname];
		x = moveXbySlicePos (x, obj);
		$(divname).style.left = x;
		y = moveYbySlicePos (y, obj);
		$(divname).style.top = y + 'px';		
		$(divname).style.display = 'block';
	}

	function posDisplayOff(divname) {
		$(divname).style.display = 'none';
	}