var HRoll_images = new Array();//images repository



function HRoll_prepare_preload(img){

	img.HRoll_over = new Image();

	img.HRoll_over.src = img.getAttribute("hroll_over");

	img.HRoll_over_src = img.HRoll_over.src;

	img.HRoll_normal_src = img.src;

}



function HRoll_prepare_events(img){

	img.HRoll_onmouseover = img.onmouseover;

	img.onmouseover = HRoll_img_over;

	

	img.HRoll_onmouseout = img.onmouseout;

	img.onmouseout = HRoll_img_out;

}



function InitHRoll(){



	var imgs = document.images;

	for (var i=0; i<imgs.length; i++){

		var img = imgs[i];

		if (img.getAttribute("hroll_over") == null) continue;



		HRoll_prepare_preload(img);

		HRoll_prepare_events(img);

		

		if (img.getAttribute("name") != null && img.getAttribute("name") != "")

			HRoll_images[img.getAttribute("name")] = img;

	}



	initHRoll_fixed();

	initHRoll_links(document.links);

	initHRoll_links(document.getElementsByTagName("TD"));

}



function initHRoll_links(links){

	for (var i=0; i<links.length; i++){

		var link = links[i];

		if (link.getAttribute("hroll_over") == null) continue;



		var imgs = link.getAttribute("hroll_over").split(",");

		link.HRoll_imgs = imgs;

		

		link.HRoll_onmouseover = link.onmouseover;

		link.onmouseover = HRoll_link_over;

		

		link.HRoll_onmouseout = link.onmouseout;

		link.onmouseout = HRoll_link_out;

	}



	if (window.before_HRoll_onload != null) window.before_HRoll_onload();

}



function initHRoll_fixed(){

	if (document.body.getAttribute("hroll_over") == null || document.body.getAttribute("hroll_over") == "") return;

	var fixed = document.body.getAttribute("hroll_over").split(",");

	for (var i=0; i<fixed.length; i++){

		var img = HRoll_images[fixed[i]];

		if (img != null){

			img.HRoll_normal_src = img.HRoll_over_src;

			img.src = img.HRoll_over_src;

		}

	}

}



function HRoll_link_over(){

	for (var i=0; i<this.HRoll_imgs.length; i++){

		var img = HRoll_images[this.HRoll_imgs[i]];

		if (img == null) continue;

		img.onmouseover();

		if (this.HRoll_onmouseover) return this.HRoll_onmouseover();

	}

}



function HRoll_link_out(){

	for (var i=0; i<this.HRoll_imgs.length; i++){

		var img = HRoll_images[this.HRoll_imgs[i]];

		if (img == null) continue;

		img.onmouseout();

		if (this.HRoll_onmouseout) return this.HRoll_onmouseout();

	}

}



function HRoll_img_over(){

	this.src = this.HRoll_over_src;

	if (this.HRoll_onmouseover) return this.HRoll_onmouseover();

}



function HRoll_img_out(){

	this.src = this.HRoll_normal_src;	

	if (this.HRoll_onmouseout) return this.HRoll_onmouseout();

}



if (window.before_HRoll_onload == null){

	window.before_HRoll_onload  = window.onload;

	window.onload = InitHRoll;

}