function OpenPopup(url){
    newwindow=window.open(url,'','height=510, width=500, dependent=yes, toolbar=no, menubar=no, scrollbars=no, resizable=no, location=no, directories=no, status=no');
	if (window.focus) {newwindow.focus();}
}

$(document).ready(function(){
   var h = Math.max($('#col_text').height(),$('#col_sous_menu').height(),$('#col_images').height(),$('#col_pub').height());
 $('.eq_div').height(h);
});