function checkLoad(img){
var pics=document.images
for (var i_tem = 0; i_tem < pics.length; i_tem++)
if (pics[i_tem]==img)
loads[i_tem]=img.src
}

var loads=new Array()

function isLoaded(){
var pics=document.images
for (var i_tem = 0; i_tem < pics.length; i_tem++)
if (loads[i_tem]==undefined&&pics[i_tem].lowsrc)
pics[i_tem].src=pics[i_tem].lowsrc
}

if ( typeof window.addEventListener != "undefined" )
    window.addEventListener( "load", isLoaded, false );
else if ( typeof window.attachEvent != "undefined" ) {
    window.attachEvent( "onload", isLoaded );
}
else {
    if ( window.onload != null ) {
        var oldOnload = window.onload;
        window.onload = function ( e ) {
            oldOnload( e );
            isLoaded();
        };
    }
    else
        window.onload = isLoaded;
}