var onload_list=[],onresize_list=[],onscroll_list=[],isIE=false;

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

function px(val) {
 return val+'px';
}

function openAWindow( pageToLoad, width, height ) {
 var w = width+20;
 var h = height+20;
 var xposition = (screen.width - w) / 2;
 var yposition = (screen.height - h) / 2;
 var args = "width=" + w + "," +
 "height=" + h + "," +
 "location=0," +
 "menubar=0," +
 "resizable=1," +
 "scrollbars=0," +
 "status=0," +
 "titlebar=0," +
 "toolbar=0," +
 "hotkeys=0," +
 "screenx=" + xposition + "," //NN Only +
 "screeny=" + yposition + "," //NN Only +
 "left=" + xposition + "," //IE Only +
 "top=" + yposition; //IE Only
 window.open(pageToLoad,'popup',args);
}

window.onload=function() {

 for(var i=0;i<onload_list.length;i++) {
 
  onload_list[i]();
 
 }
 
}

window.onresize=function() {

 for(var i=0;i<onresize_list.length;i++) {
 
  onresize_list[i]();
 
 }

}

window.onscroll=function() {

 for(var i=0;i<onscroll_list.length;i++) {
 
  onscroll_list[i]();
 
 }

}