function rollSetup() {
	/** string added to "on" state images */
	var post = "_o";
	/** fetch the image tag array from the DOM */
	var imgTags = document.getElementsByTagName("img");

	/** loop through the images for find appropriate preloads */
	for (i=0; i < imgTags.length; i++) {
		/** make sure there is a source defined */
		if (imgTags[i].src != '') {
			/** make sure the image tag has a class */
			tmpClass = imgTags[i].className;
			if (tmpClass) {
				/** match the image rollover class */  
				if (tmpClass.match("rollover")) {
					/** store the image source to the 'imgOut' attribute */    
					imgTags[i].imgOut = new Image();
					imgTags[i].imgOut.src = imgTags[i].src;

					/** pull apart the source string */
					srcLength = imgTags[i].src.length;

					srcName = imgTags[i].src.substr(0, srcLength-4);
					srcExt = imgTags[i].src.substr(srcLength-4, srcLength);

					/** store the image source to the 'imgOver' attribute */
					imgTags[i].imgOver = new Image();
					imgTags[i].imgOver.src = srcName + post + srcExt;

					/** set up the 'onmouseover' and 'onmouseout' event handlers */     
					imgTags[i].onmouseover = function() {
						this.src = this.imgOver.src;
					}
					imgTags[i].onmouseout = function() {
						this.src = this.imgOut.src;
					}
				}
			}
		}
	}
	/** fetch the image tag array from the DOM */
	var imgTags = document.getElementsByTagName("input");

	/** loop through the images for find appropriate preloads */
	for (i=0; i < imgTags.length; i++) {
		/** make sure there is a source defined */
		if (imgTags[i].src != '') {
			/** make sure the image tag has a class */
			tmpClass = imgTags[i].className;
			if (tmpClass) {
				/** match the image rollover class */  
				if (tmpClass.match("rollover")) {
					/** store the image source to the 'imgOut' attribute */    
					imgTags[i].imgOut = new Image();
					imgTags[i].imgOut.src = imgTags[i].src;

					/** pull apart the source string */
					srcLength = imgTags[i].src.length;

					srcName = imgTags[i].src.substr(0, srcLength-4);
					srcExt = imgTags[i].src.substr(srcLength-4, srcLength);

					/** store the image source to the 'imgOver' attribute */
					imgTags[i].imgOver = new Image();
					imgTags[i].imgOver.src = srcName + post + srcExt;

					/** set up the 'onmouseover' and 'onmouseout' event handlers */     
					imgTags[i].onmouseover = function() {
						this.src = this.imgOver.src;
					}
					imgTags[i].onmouseout = function() {
						this.src = this.imgOut.src;
					}
				}
			}
		}
	}
}

function findPos(obj) {
	var curleft=curtop=0;
	if (obj.offsetParent) {
		curleft=obj.offsetLeft;
		curtop=obj.offsetTop;
		while (obj=obj.offsetParent) {
			curleft+=obj.offsetLeft;
			curtop+=obj.offsetTop;
		}
	}
	return [curleft,curtop];
}

function pageSetup() {
	rollSetup();
}

window.onload=pageSetup;