var DHTML = (document.getElementById || document.all || document.layers);
function ir_getObj(name)
{
 if (document.getElementById)
 {
  return document.getElementById(name).style;
 }
 else if (document.all)
 {
  return document.all[name].style;
 }
 else if (document.layers)
 {
  return document.layers[name];
 }
}
function showWaitm(div,flag)
{
 if (!DHTML) return;
 var x = ir_getObj(div);
  	if (navigator.appName == "Microsoft Internet Explorer") {
         document.getElementById(div).style.top = document.body.scrollTop+(document.body.offsetHeight/2)-(document.getElementById(div).offsetHeight/2);
		 document.getElementById(div).style.left = document.body.scrollLeft+(document.body.offsetWidth/2)-(document.getElementById(div).offsetWidth/2);
	} else{
         document.getElementById(div).style.top = window.pageYOffset+(window.innerHeight/2)-(document.getElementById(div).offsetHeight/2);
		 document.getElementById(div).style.left = window.pageYOffset+(window.innerWidth/2)-(document.getElementById(div).offsetWidth/2); 
    }
 x.visibility = (flag) ? 'visible':'hidden'
 return true;
}
showLoading = function() {
	showWaitm('waitDiv', 1);
}
	
hideLoading = function() {
	showWaitm('waitDiv', 0);
}