function doOnLoad()
{
	createbackLinks();
}

function createBackLinks()
{
	if( document.getElementById("BackLink") )
	{
		alert("back link")
		var objTag = document.getElementById("BackLink");
		
		if(objTag.innerHTML)
		{
			objTag.innerHTML = "<a href='javascript:history.back();'><strong>Back to previous page</strong></a>";
		}
		else
		{
			if ( objTag.hasChildNodes() )
			{
			    while ( objTag.childNodes.length >= 1 )
			    {
			        objTag.removeChild( objTag.firstChild );       
			    } 
			}
			
			var objLink = document.createElement("a");
			var objStrong = document.createElement("strong");
			objLink.setAttribute("href", "javascript:history.back();");
			var objText = document.createTextNode("Back to previous page");
			
			objStrong.appendChild(objText);
			objLink.appendChild(objStrong);
			objTag.appendChild(objLink);	
		}
	}	
}