function getElement(which){
	try{
		if(typeof(which)=="object"){
			return which;
		}else if(document.getElementById(which)){
			return document.getElementById(which);
		}else if(document.getElementByName(which)){
			return document.getElementByName(which);
		}else if(document.all.which){
			return document.all.which;
		}else if(document.which){
			return document.which;
		}else{
			return null;
		}
	}catch(e){}
}

function ChkAll(form){
	var i=0;
	for(i; i<form.elements.length; i++){
		var e=form.elements[i];
		if(e.name!="chkall"){
			e.checked=form.chkall.checked;
		}
	}
}

function getFocus(which){
    try{
	    getElement(which).select();
	}
	catch(e){}
}

function changeImg(which,w,h){
	var thisImage=getElement(which);
	if(thisImage){
		if(thisImage.width>w){
			thisImage.width=w;
		}
		if(thisImage.height>h){
			thisImage.height=h;
		}
	}
}

function openWindow(Link,w,h){
	if(w&&h){
		window.open(Link,"","width:"+w+",height:"+h+";");
	}else{
		window.open(Link,"");
	}
}

function disableItem(itm){
	getElement(itm).disabled="disabled";
}

function getStr(num){
	if(num.length == 1){
		return "0" + num;
	}
	return num;
}