function clearPostCode()
{
    if(document.searchForm.pcode.value.indexOf("optional") >=0 )
   { 
    	document.searchForm.pcode.value = '';
	}
}

function fillPostCode()
{
	if (document.searchForm.pcode.value.length == 0)
	{
		document.searchForm.pcode.value = 'Post Code (optional)';
	} 
}

function changeMainPic(strImgNum,intVehicleID)
{
	//document.getElementById('MainImage').src = 'http://www.compucars.co.uk/carpics/' + intVehicleID + '-0' + strImgNum + '.jpg';
	//document.getElementById('mainImageLink').href = 'http://www.compucars.co.uk/carpics/Lg' + intVehicleID + '-0' + strImgNum + '.jpg';
}

function linktrack(ID) {
		if(document.images){
			new Image().src="/link.asp?ID=" + ID;
	
		}
		return true;
	}
	
function changeLargeImage(intImageNum)	{
		var iLoop = 1;
		do
		{
			if (iLoop != intImageNum)	
			{
				if (document.getElementById('mainImageLink'+iLoop))	
				{
					document.getElementById('mainImageLink'+iLoop).style.display = 'none';
				}
				
				if (document.getElementById('mainImageEnlargeLink'+iLoop)) 
				{
					document.getElementById('mainImageEnlargeLink'+iLoop).style.display = 'none';
				}
				if (document.getElementById('mainImageEnlargeLinkNormal'+iLoop)) 
				{
					document.getElementById('mainImageEnlargeLinkNormal'+iLoop).style.display = 'none';
				}
			} else
				{
					if (document.getElementById('mainImageLink'+iLoop))	
					{
						document.getElementById('mainImageLink'+iLoop).style.display='inline';
					}
					if (document.getElementById('mainImageEnlargeLink'+iLoop)) 
					{
					document.getElementById('mainImageEnlargeLink'+iLoop).style.display = 'inline';
					}
					if (document.getElementById('mainImageEnlargeLinkNormal'+iLoop)) 
					{
						document.getElementById('mainImageEnlargeLinkNormal'+iLoop).style.display = 'inline';
					}
				}
			iLoop += 1;
		}
		while(iLoop <= 12)
		return true;
	}	
	
function changeEnlargeImageLink(intImageNum,intVehicleID)	{
	if (document.getElementById('mainImageEnlargeLink')) {
		// Used for Large image
		document.getElementById('mainImageEnlargeLink').href = 'http://www.compucars.co.uk/carpics/Lg'+intVehicleID+'-0'+intImageNum+'.jpg';
	}
	
	if (document.getElementById('mainImageEnlargeLinkNormal')) {
		// Used for Normal image
		document.getElementById('mainImageEnlargeLinkNormal').href = 'http://www.compucars.co.uk/carpics/'+intVehicleID+'-0'+intImageNum+'.jpg';
	}
}



function IsIE8(){
	var blnIsIE8 = false;
	if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)){ //test for MSIE x.x;
 	var ieversion=new Number(RegExp.$1) // capture x.x portion and store as a number
 	if (ieversion>=8)
  		blnIsIE8 = true;
	}
	return blnIsIE8;
}


function setExternalLinks() {
	if (!IsIE8()){
		if (!document.getElementsByTagName) return; 
		var anchors = document.getElementsByTagName("a"); 
		for (var i=0; i<anchors.length; i++) { 
			var anchor = anchors[i]; 
			if (anchor.getAttribute("href") && 
			anchor.getAttribute("rel") == "externalLink") 
			anchor.target = "_blank"; 
		}
	}
}

if (window.addEventListener)
window.addEventListener("load", setExternalLinks, false)
else if (window.attachEvent)
window.attachEvent("onload", setExternalLinks)
else if (document.getElementById)
window.onload=setExternalLinks