function popUp(URL,tipo) {
	var width	= 1			
	var	height	= 1
	var	left	= 1
	var	top		= 1
	var	scrollbars = 1	
	
	day = new Date();
	id = day.getTime();	
	
	switch (tipo) {
		case 'tienda':
			width = 580;
			height = 478;
			left  = 277;
			top   = 134;
			scrollbars = 0;
			break;
		case 'catalogo':
		    width = 556;
		    height = 500;
		    left = 277;
		    top = 134;
		    scrollbars = 2;
		    break;
		case 'smartphone':
		    width = 605;
		    height = 500;
		    left = 277;
		    top = 134; 
		    scrollbars = 2;
		    break;	
		default:
			width = 200;
			height= 300;
			left  = 100;
			top   = 100;
			scrollbars = 0;
	}	
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=" + scrollbars + ",location=0,statusbar=0,menubar=0,resizable=0,width=" + width + ",height=" + height + ",left = " + left + ",top = " + top + "');");	
}