// JavaScript Document
function ShowcpBP(ImgD){
	var image = new Image();
	image.src = ImgD.src;
	if(image.width>0 && image.height>0){
    	if(image.width/image.height >=320/240){
     		if(image.width>320){  
     			ImgD.width =320;
     			ImgD.height = (image.height*320)/image.width;
                }else{
     			ImgD.width = image.width;  
     			ImgD.height = image.height;}
     		ImgD.alt ="点击查看产品详细介绍";
	            }else{
     		if(image.height>240){  
     			ImgD.height =240;
     			ImgD.width = (image.width*240)/image.height;     
     		}else{
     			ImgD.width = image.width;  
     			ImgD.height = image.height;}
     		ImgD.alt ="点击查看产品详细介绍";}
    }
}
function ShowPImages(obj,img,href) 
{ 
	var layer = document.getElementById("dPLayer");
	var t=obj.offsetTop;
	var l=obj.offsetLeft;
	while(obj=obj.offsetParent){
		t+=obj.offsetTop;
		l+=obj.offsetLeft;
	}
	var content = "<table border=0><tr><td align='center' valign='middle'><A href="+href+" target=_blank><IMG border='0' src='"+img+"' width='320' height='240' onMouseOut='low(this);hideLayer();' onMouseOver=high(this) style='FILTER: alpha(opacity=10);border:0;'onload='ShowcpBP(this)'></A></td></tr></table>";
			layer.innerHTML=content;
			layer.style.left =l +20 -30;
			layer.style.top = t+20-30;
			layer.style.visibility='visible';
} 
function hideLayer()
{	
	var layer = document.getElementById("dPLayer");
	layer.style.visibility='hidden';
}
function dispear(){
	var layer = document.getElementById("dPLayer");
	if ((layer.style.width>0)&& (layer.style.height>0)){
		layer.style.width-=1;
		layer.style.height-=1;
	}
	else {
		layer.style.visibility='hidden';
		if (window.interval)
		clearInterval(interval);
	}
}
function moveToMouseLoc(e) 
{ 
	var layer = document.getElementById("dPLayer");
	var offsetX = -5; 
	var offsetY = -10;
	var	 x = event.x + document.body.scrollLeft;
	var	 y = event.y + document.body.scrollTop; 
	layer.style.left = x + offsetX;
	layer.style.top = y + offsetY;
	return true; 
} 
function high(which2){
	theobject=which2;
	highlighting=setInterval("highlightit(theobject)",40);
}
function low(which2){
	clearInterval(highlighting);
	which2.filters.alpha.opacity=40;
}
function highlightit(cur2){
	if (cur2.filters.alpha.opacity<100)
		cur2.filters.alpha.opacity+=5
	else if (window.highlighting)
		clearInterval(highlighting)
}

function delightit(cur2){
	if (cur2.filters.alpha.opacity>5)
	cur2.filters.alpha.opacity-=5;
	else if (window.highlighting)
	clearInterval(highlighting);
}