function runPopunder(codArea){
	
	isNS4 = (document.layers) ? true : false;
	isIE4 = (document.all && !document.getElementById) ? true : false;
	isIE5 = (document.all && document.getElementById) ? true : false;
	isNS6 = (!document.all && document.getElementById) ? true : false;

	if (isIE4 || isIE5){
    		if (document.body){
        		ads_hv_altura=document.body.clientHeight;
        		ads_hv_anchura=document.body.clientWidth;
    		}
    		else{
            		if (frames.length==0){
	                	ads_hv_altura=301;
        	        	ads_hv_anchura=451;
            		}
            		else{
	        		ads_hv_altura=0;
        		    	ads_hv_anchura=0;
        	        }
    		}
	}
	    
	if (isNS4 || isNS6){
    		ads_hv_altura=window.innerHeight;
    		ads_hv_anchura=window.innerWidth;
	}

	if (ads_hv_altura>300 && ads_hv_anchura>450){
	
		var random=Math.floor(Math.random()*101);
		var baseurl='http://usuariosgaleon.hispavista.com/publicidad/index.html?codArea='+codArea;
		generador=window.open(baseurl,random,'height=1,width=1,screenX=10000,screenY=10000,left=10000,top=10000,location=0,menubar=0,statusbar=0,locationbar=0,scrollbars=0,resizable=0');
	}
}