var Imgi = new Array();
		
		function newImage(arg) {
			if (document.images) {
				rslt = new Image();
				rslt.src = arg;
				return rslt;
			}
		}
		
		function changeImages(img_name, img_file) {			
			if (document.images && (preloadFlag == true)) {
				document[img_name].src = "" + img_file;
			}
		}
		var preloadFlag = false;

		function preloadImages_mp() {
			if (document.images) {
				Imgi[0] = newImage("../pics/bt1on.jpg");
				Imgi[1] = newImage("../pics/bt2on.jpg");
				Imgi[2] = newImage("../pics/bt3on.jpg");
				Imgi[3] = newImage("../pics/bt4on.jpg");
				Imgi[4] = newImage("../pics/bt5on.jpg");																																												
				Imgi[5] = newImage("../pics/bt6on.jpg");
				Imgi[6] = newImage("../pics/bt7on.jpg");				
				preloadFlag = true;
			}			
		}
		
		function displayWindow(url, width, height, name) {
        	var Win = window.open(url, name,'width=' + width + ',height=' + height + ',left = 0' + ',top = 0' + ',resizable=0,scrollbars=0,menubar=0,toolbar = 0' );
		}
		
		function displayWindow1(url, width, height, name) {
        	var Win = window.open(url, name,'width=' + width + ',height=' + height + ',left = 0' + ',top = 0' + ',resizable=0,scrollbars=1,menubar=0,toolbar = 0' );
		}