function addTildas(value)
{
	var result="";
	
	if (value.length == 0)
	{
		result = value;
	}
	else
	{	
		//alert("adding tildas");
		var temp = new Array();
		temp = value.split(' ');
		
		for ( var i=0 ; i < temp.length; i++ ){
			var word = temp[i];
			var l = word.length
			if (l > 0
				&& word.substring(l-1, l) != "~")
			{
				result = result + word +"~ ";
			}
			else
			{
				result = result + word +" ";
			}
		}
	}
	//alert("result= '"+result+"'");
	return result;
}
function removeTildas(value)
{
	var result="";
	
	if (value.length == 0)
	{
		result = value;
	}
	else
	{	
		//alert("removing tildas");
		var temp = new Array();
		temp = value.split(' ');
		
		for ( var i=0 ; i < temp.length; i++ ){
			var word = temp[i];
			var l = word.length
			if (l > 0
				&& word.substring(l-1, l) == "~")
			{
				result = result + word.substring(0,l-1) +" ";
			}
			else
			{
				result = result + word +" ";
			}
		}
	}
	//alert("result= '"+result+"'");
	return result;

}