/*
Simple Image Trail script- By JavaScriptKit.com
Visit http://www.javascriptkit.com for this script and more
This notice must stay intact
*/
/*modified by IStockPhotos.com, where I go it from
modified again by 1A-Infosysteme, to fit our needs
I recommend you to use the original*/

var offsetfrommouse=[-100,+20]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
//var offsetfrommouse=[+10,-250]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var displayduration=0; //duration in seconds image should remain visible. 0 for always.
//var currentimageheight = 200;	// maximum image size. was 270 before
//var currentimagewidth = 200;	//imagewidth damits besser passt :/


if (document.getElementById || document.all){
	document.write('<div id="trailimageid">');
	document.write('</div>');
}

function gettrailobj(){
	if (document.getElementById)
		return document.getElementById("trailimageid").style
	else if (document.all)
		return document.all.trailimagid.style
}

function gettrailobjnostyle(){
	if (document.getElementById)
		return document.getElementById("trailimageid")
	else if (document.all)
		return document.all.trailimagid
}


function truebody(){
	return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function showtrail(imagename,title,showthumb,height,width){

	if (height == '*') 
		{ currentimageheight = '0';	}
	else if (height > 0)
		{ currentimageheight = height;	}
	else 
		{ currentimageheight = '200';	}

		
	if (width > 0)	{
		currentimagewidth = "width="+ width;
	}
	//	{currentimagewidth = width;}
	else if (width == '*') {
		currentimagewidth = '';
	}
	else {
		currentimagewidth = 'width=200';
	}
		
	document.onmousemove=followmouse;

	newHTML = '<div style="padding:5px; color:#000000; background-color:#FFFFFF; text-align:center; border:1px solid #888888; white-space:nowrap;">';
	newHTML = newHTML + title;

	if (showthumb > 0){
	//	newHTML = newHTML + '<div align="center" style=""><img src="' + imagename + '" border="0" width="' + currentimagewidth + '"></div>'; //padding: 8px 2px 2px 2px;
		newHTML = newHTML + '<div align="center" style=""><img src="' + imagename + '" border="0" ' + currentimagewidth + '></div>'; //padding: 8px 2px 2px 2px;
	}

	newHTML = newHTML + '</div>';

	gettrailobjnostyle().innerHTML = newHTML;

	gettrailobj().visibility="visible";

}


function hidetrail(){
	gettrailobj().visibility="hidden"
	document.onmousemove=""
	gettrailobj().left="-500px"

}

function followmouse(e){

	var xcoord=offsetfrommouse[0]
	var ycoord=offsetfrommouse[1]

	//var docwidth = 400;
	//var docheight = 300;
	
	var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)

	//if (document.all){
	//	gettrailobjnostyle().innerHTML = 'A = ' + truebody().scrollHeight + '<br>B = ' + truebody().clientHeight;
	//} else {
	//	gettrailobjnostyle().innerHTML = 'C = ' + document.body.offsetHeight + '<br>D = ' + window.innerHeight;
	//}

	if (typeof e != "undefined"){	
		if (docwidth - e.pageX < 200){
			xcoord = e.pageX - xcoord - 450; // 286 Move to the left side of the cursor
		} else {
			xcoord += e.pageX;
		}
		if (screen.height - e.pageY + window.pageYOffset < (currentimageheight + 180)){  //screen.height <=> docheight
			ycoord += e.pageY + truebody().scrollTop - 60 - currentimageheight - window.pageYOffset;
			//ycoord += e.pageY - Math.max(0,(110 + currentimageheight + e.pageY - docheight - truebody().scrollTop));
		} else {
			ycoord += truebody().scrollTop + e.pageY - window.pageYOffset;
		}
		/*
		if (screen.height - e.pageY < (currentimageheight + 180)){  //screen.height <=> docheight
			ycoord += e.pageY + truebody().scrollTop - 60 - currentimageheight;
			//ycoord += e.pageY - Math.max(0,(110 + currentimageheight + e.pageY - docheight - truebody().scrollTop));
		} else {
			ycoord += truebody().scrollTop + e.pageY;
		}
		*/

	} else if (typeof window.event != "undefined"){
		if (docwidth - event.clientX < 200){ //350
			xcoord = event.clientX + truebody().scrollLeft - xcoord - 450; // 286 Move to the left side of the cursor //400
		} else {
			xcoord += truebody().scrollLeft+event.clientX
		}
		if (screen.height - event.clientY < (currentimageheight + 180)){  //110        docheight
			//ycoord += event.clientY + truebody().scrollTop - Math.max(0,(100 + currentimageheight + event.clientY - screen.height)); //docheight
			ycoord += event.clientY + truebody().scrollTop - 60 - currentimageheight; //docheight
			//alert (ycoord +"="+ event.clientY +","+ truebody().scrollTop +","+ currentimageheight +","+ event.clientY +","+ screen.height);
			//alert ("falsch " + ycoord +"   ("+ screen.height +" - "+ event.clientY +" < ("+ currentimageheight +" + 400))");
		} else {
			ycoord += truebody().scrollTop + event.clientY;
			//alert ("falsch " + ycoord +"   ("+ screen.height +" - "+ event.clientY +" < ("+ currentimageheight +" + 400))");
		}
	}

	//var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15
	//var docheight=document.all? Math.max(truebody().scrollHeight, truebody().clientHeight) : Math.max(document.body.offsetHeight, window.innerHeight)
		if(ycoord < 0) { ycoord = ycoord*-1; }
	gettrailobj().left=xcoord+"px"
	gettrailobj().top=ycoord+"px"

}