function initLSDD()
{
	
	var currguid;
	var hiddenLegalServiceDD=document.getElementById("hiddenDdlLegalService");
	var legalServiceDD=document.getElementById("selLegalSubTopic");
	
	legalAreaDD.onchange= initLSDD;
						
	// clear dropdown 
	legalServiceDD.options.length=0;		
	
	// get current legal area
	var currSelectedLegalArea=legalAreaDD.options[legalAreaDD.selectedIndex].value;		
	
	// if it's value is -1 we do nothing and disable the lower dropdown and the go button
	if(currSelectedLegalArea == -1)
	{
		legalServiceDD.disabled=true;
		goButton.style.visibility="hidden";
	}
	else
	{
		
		// find all assigned items
		for (var i=0;i<legalAreaToCIdArr.length;i++)
		{
			if(legalAreaToCIdArr[i].indexOf(currSelectedLegalArea)!=-1)
			{	
				assignedItemsArr=legalAreaToCIdArr[i].split(":")[1].split(",");
			}
		}	
		
		// now hide the items not assigned to the chosen area
		// always take the first one (overview)
		for (var j=0;j<1;j++)
		{
			//legalServiceDD.options.add(hiddenLegalServiceDD.options[j].cloneNode(false));
			//legalServiceDD.options[j].innerHTML=hiddenLegalServiceDD.options[j].innerHTML;
			legalServiceDD.options[legalServiceDD.options.length] =  new Option(hiddenLegalServiceDD.options[j].text,hiddenLegalServiceDD.options[j].value );
		}
		for(var i=0;i<assignedItemsArr.length;i++)
		{	
			for (var j=0;j<hiddenLegalServiceDD.length;j++)
			{
				if( parseFloat(hiddenLegalServiceDD.options[j].value)==parseFloat(assignedItemsArr[i]) ) 
				{		
					//legalServiceDD.options.add(hiddenLegalServiceDD.options[j].cloneNode(false));
					//legalServiceDD.options[legalServiceDD.options.length-1].innerHTML=hiddenLegalServiceDD.options[j].innerHTML;
					legalServiceDD.options[legalServiceDD.options.length] =  new Option(hiddenLegalServiceDD.options[j].text,hiddenLegalServiceDD.options[j].value );
					break;
				}
			}
		}
		
		legalServiceDD.disabled=false;
		goButton.style.visibility="visible";
		
		legalServiceDD.focus();
		
	}
	
	
}