function mark(unit){
	if(unit == "m"){
		//document.getElementById("unit_m").style.backgroundColor="#d7d7d7";
		//document.getElementById("unit_f").style.backgroundColor="white";
		document.getElementById("unit1").innerHTML = " m.";
		document.getElementById("unit2").innerHTML = " m.";
		document.getElementById("unit3").innerHTML = " m.";
		document.getElementById("unit4").innerHTML = " kg.";
	}
	else{
		//document.getElementById("unit_f").style.backgroundColor="#d7d7d7";
		//document.getElementById("unit_m").style.backgroundColor="white";
		document.getElementById("unit1").innerHTML = " ft.";
		document.getElementById("unit2").innerHTML = " ft.";
		document.getElementById("unit3").innerHTML = " ft.";
		document.getElementById("unit4").innerHTML = " lbs.";
	}

}

function load(){
		
radioObj = document.forms['crane_search'].elements['units'];

if(!radioObj)
return "";

	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
			
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			if(radioObj[i].value == "m"){
				//document.getElementById("unit_m").style.backgroundColor="#d7d7d7";
				//document.getElementById("unit_f").style.backgroundColor="white";
				document.getElementById("unit1").innerHTML = " m.";
				document.getElementById("unit2").innerHTML = " m.";
				document.getElementById("unit3").innerHTML = " m.";
				document.getElementById("unit4").innerHTML = " kg.";
			}
			else{
				//document.getElementById("unit_f").style.backgroundColor="#d7d7d7";
				//document.getElementById("unit_m").style.backgroundColor="white";
				document.getElementById("unit1").innerHTML = " ft.";
				document.getElementById("unit2").innerHTML = " ft.";
				document.getElementById("unit3").innerHTML = " ft.";
				document.getElementById("unit4").innerHTML = " lbs.";
			}
		return "";
		}
	}
	return "";
	
//document.getElementById("unit_m").style.backgroundColor="#d7d7d7";

}