//  THIS FILE CONTAINS THE FOLLOWING FUNCTIONS:

//

var ext = ".gif";

//  ROLL OVER IMAGE FUNCTION
function imageOver(imageName){
	document.images[imageName].src = imageDir + imageName + "_ov" + ext;
}

//  ROLL OFF IMAGE FUNCTION
function imageOff(imageName){
	if(imageName != curImg){
		document.images[imageName].src = imageDir + imageName + ext;
	}
}


var curImg = "";

//  CURRENT PAGE IMAGE FUNCTION
function curImgOn(imageName){
	curImg = imageName;
	imageOver(curImg);
}

var curImgJpg = "";

//  CURRENT PAGE IMAGE FUNCTION
function curImgOnJpg(imageName){
	curImgJpg = imageName;
	imageOverjpg(curImgJpg);
}



//  POP UP WINDOW FUNCTION
function windowOpener(what_url,winheight,winwidth) {
	options="toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width="+winwidth+",height="+winheight;

	popwin = window.open(what_url,'pop_win',options);
	popwin.focus();
}

function windowOpener2(what_url,winheight,winwidth) {
	options="toolbar=yes,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width="+winwidth+",height="+winheight;

	popwin = window.open(what_url,'pop_win',options);
	popwin.focus();
}




//ROLL JPEGS

var counter=1;   

function rollPics() {
document.display.src="images/pic_home"+counter+".jpg";  //Display image "counter".jpg
counter ++;     // Add 1 to counter
if (counter>4) {     // If counter is greater than 4 images then reset it
counter=1
}

} 

//	Replaces the specified main image wth the images specified by the onMouseOver
imageOn1 = new Image(288,238);
imageOn1.src = uImage1;
imageOn2 = new Image(288,238);
imageOn2.src = uImage2;
imageOn3 = new Image(288,238);
imageOn3.src = uImage3;
imageOn4 = new Image(288,238);
imageOn4.src = uImage4;

function ShowBigImage(num){
  	if (num==1){
    	document.Main_Pic.src=imageOn1.src;
    } 
    if (num==2){
    	document.Main_Pic.src=imageOn2.src;
    } 
    if (num==3){
    	document.Main_Pic.src=imageOn3.src;
    } 
    if (num==4){
    	document.Main_Pic.src=imageOn4.src;
    } 
}