function initPage(){

}

if (window.addEventListener){
	window.addEventListener("load", initPage, false);
} else if (window.attachEvent){
	window.attachEvent("onload", initPage);
}

function checkEnter(e, caller) //e is event object passed from function invocation
{

    var characterCode //literal character code will be stored in this variable

    if (e && e.which || e.which == 0) { //if which property of event object is supported (NN4)

        e = e
        characterCode = e.which //character code is contained in NN4's which property
    }
    else {
        e = event
        characterCode = e.keyCode //character code is contained in IE's keyCode property
    }

    if (characterCode == 13)//if generated character code is equal to ascii 13 (if enter key)
    {
        if (document.all) {
            e.returnValue = false;
            e.cancel = true;
        }
        else {
            e.preventDefault();
        }
        var obj = document.getElementById(caller);
        if (obj) {

            if (obj.click) {
                obj.click();
            }
        }
        return false
    }
    else {
        return true
    }

}

function setOpacity(obj, opacity) {
    opacity = (opacity == 100) ? 99.999 : opacity;
    obj.style.filter = "alpha(opacity:" + opacity + ")";
    obj.style.KHTMLOpacity = opacity / 100;
    obj.style.MozOpacity = opacity / 100
    obj.style.opacity = opacity / 100;
}