browser = ((navigator.appName == "Netscape" || navigator.appName == "Microsoft Internet Explorer") && (parseInt (navigator.appVersion) >= 3))

if(browser)
{
var	img1=new Image();
var	img1s=new Image();
var	img2=new Image();
var	img2s=new Image();
var	img3=new Image();
var	img3s=new Image();
var	img4=new Image();
var	img4s=new Image();
var	img5=new Image();
var	img5s=new Image();
var	img6=new Image();
var	img6s=new Image();
var	img7=new Image();
var	img7s=new Image();
var	img8=new Image();
var	img8s=new Image();


img1.src="image/l_com1.gif";
img1s.src="image/l_com2.gif";
img2.src="image/l_bus1.gif";
img2s.src="image/l_bus2.gif";
img3.src="image/l_pro1.gif";
img3s.src="image/l_pro2.gif";
img4.src="image/l_pri1.gif";
img4s.src="image/l_pri2.gif";
img5.src="image/l_rec1.gif";
img5s.src="image/l_rec2.gif";
img6.src="image/l_tow1.gif";
img6s.src="image/l_tow2.gif";
img7.src="image/l_top1.gif";
img7s.src="image/l_top2.gif";
img8.src="image/l_mai1.gif";
img8s.src="image/l_mai2.gif";
}

function cimg1(){
	if (browser){	document.img1.src=img1.src	}
}
function cimg1s(){
	if (browser){	document.img1.src=img1s.src	}
}
function cimg2(){
	if (browser){	document.img2.src=img2.src	}
}
function cimg2s(){
	if (browser){	document.img2.src=img2s.src	}
}
function cimg3(){
	if (browser){	document.img3.src=img3.src	}
}
function cimg3s(){
	if (browser){	document.img3.src=img3s.src	}
}
function cimg4(){
	if (browser){	document.img4.src=img4.src	}
}
function cimg4s(){
	if (browser){	document.img4.src=img4s.src	}
}
function cimg5(){
	if (browser){	document.img5.src=img5.src	}
}
function cimg5s(){
	if (browser){	document.img5.src=img5s.src	}
}
function cimg6(){
	if (browser){	document.img6.src=img6.src	}
}
function cimg6s(){
	if (browser){	document.img6.src=img6s.src	}
}
function cimg7(){
	if (browser){	document.img7.src=img7.src	}
}
function cimg7s(){
	if (browser){	document.img7.src=img7s.src	}
}
function cimg8(){
	if (browser){	document.img8.src=img8.src	}
}
function cimg8s(){
	if (browser){	document.img8.src=img8s.src	}
}