window.onload = function(){

	var imgTag = document.getElementsByTagName("img");

	for (var i=0; i<imgTag.length; i++){

	

		if(imgTag[i].className == "clickable"){

			imgTag[i].onmouseover = function(){

				this.src = this.src.split("_out.jpg")[0]+"_over.jpg";


			}

			imgTag[i].onmouseout = function(){

				this.src = this.src.split("_over.jpg")[0]+"_out.jpg";

			}

		}
	}
	
	
	
	var inputs = document.getElementsByTagName("input");
	for( var i=0,j=inputs.length; i<j; i++){
		var btn = inputs[i]; 
		if(btn.getAttribute("class") == "input_btn"){
			btn.onmouseover = function(){
				this.style.backgroundPosition = 'left -43px';
				return false;
			}
			btn.onmouseout = function(){
				this.style.backgroundPosition = 'left top';
				return false;
			}
		}
		if(btn.getAttribute("className") == "input_btn"){
			btn.onmouseover = function(){
				this.style.backgroundPosition = 'left -43px';
				return false;
			}
			btn.onmouseout = function(){
				this.style.backgroundPosition = 'left top';
				return false;
			}
		}
	}


}