// follow the mouse
var divName = 'detail_layer'; // div that is to follow the mouse
                       // (must be position:absolute)
var offX = 15;          // X offset from mouse position
var offY = 15;          // Y offset from mouse position

function mouseX(evt) {
	if (!evt){
	 evt = window.event; 
	 }
	if (evt.pageX){
	 	 return evt.pageX;
	 	} else if (evt.clientX){
	 	 	return evt.clientX + (document.documentElement.scrollLeft ?  document.documentElement.scrollLeft : document.body.scrollLeft);
	 	} else {
	 	 	return 0;
	 	} 		
}

function mouseY(evt) {
   if (!evt){
	 evt = window.event; 
	 }
	 if (evt.pageY){
	 	 return evt.pageY; 
	 	 }else if (evt.clientY){
	   return evt.clientY + (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);
	 	 }else{
	 	  return 0;
	 	 }
}

function follow(evt) {if (document.getElementById) {var obj = document.getElementById(divName).style; //obj.visibility = 'visible';



if (document.all) {
screenBHeight=document.body.clientHeight;
}else{
screenBHeight=window.innerHeight-50;
}

if((mouseY(evt)-document.body.scrollTop+document.getElementById(divName).offsetHeight) > screenBHeight){
	newOffsetY=document.getElementById(divName).offsetHeight+30;
}else{
	newOffsetY=0;
}	




obj.left = parseInt(mouseX(evt))+offX + 'px';
obj.top = parseInt(mouseY(evt)-newOffsetY)+offY + 'px';

}
}


// rest
function make_layer(link_name) {
	
	
	
eval('document.getElementById("detail_layer_content").innerHTML='+link_name+'_text');
document.getElementById("detail_layer").className="detail_layer_visible";
//alpha_layer(80,"detail_layer")
document.onmousemove = follow;

}

function kill_layer() {
//alert('make')
document.getElementById("detail_layer_content").innerHTML='';
document.getElementById("detail_layer").className="detail_layer_invisible"
alpha_counter=0
alpha_counter_unit=0
document.onmousemove = '';
} 

function alpha_layer(opacity,id) {
	alpha_counter=10;
	alpha_counter_unit=10;
	//start_counting();
}
function start_counting() {
    
   if(alpha_counter<101){
    setTimeout("alpha_counter=alpha_counter+alpha_counter_unit ; start_counting()",100);
   
    document.getElementById("detail_layer").style.opacity = (alpha_counter / 100);
    document.getElementById("detail_layer").style.MozOpacity = (alpha_counter / 100);
    document.getElementById("detail_layer").style.KhtmlOpacity = (alpha_counter / 100);
    document.getElementById("detail_layer").style.filter = "alpha(opacity=" + alpha_counter + ")";
   }
}