// JavaScript Document

var img1_on=new Image();
var img1_off=new Image();
var img2_on=new Image();
var img2_off=new Image();
var img3_on=new Image();
var img3_off=new Image();
var img4_on=new Image();
var img4_off=new Image();

img1_on.src="../images1/htmlabch.jpg";
img1_off.src="../images1/htmlabc.jpg";
img2_on.src="../images1/htmlmh.jpg";
img2_off.src="../images1/htmlm.jpg";
img3_on.src="../images1/cssabch.jpg";
img3_off.src="../images1/cssabc.jpg";
img4_on.src="../images1/cssmh.jpg";
img4_off.src="../images1/cssm.jpg";

function rollon1(targetimage) {
	if(targetimage=="image1") {
		document.images[targetimage].src=img1_on.src;
	}
}

function rolloff1(targetimage) {
	if(targetimage=="image1") {
		document.images[targetimage].src=img1_off.src;
	}
}




function rollon2(targetimage) {
	if(targetimage=="image2") {
		document.images[targetimage].src=img2_on.src;
	}
}

function rolloff2(targetimage) {
	if(targetimage=="image2") {
		document.images[targetimage].src=img2_off.src;
	}
}



function rollon3(targetimage) {
	if(targetimage=="image3") {
		document.images[targetimage].src=img3_on.src;
	}
}

function rolloff3(targetimage) {
	if(targetimage=="image3") {
		document.images[targetimage].src=img3_off.src;
	}
}




function rollon4(targetimage) {
	if(targetimage=="image4") {
		document.images[targetimage].src=img4_on.src;
	}
}

function rolloff4(targetimage) {
	if(targetimage=="image4") {
		document.images[targetimage].src=img4_off.src;
	}
}