function doit(direction, obj) 
{
	
	if(!obj)
		return;
		
	var value = parseInt(obj.innerHTML);
	var newvalue = parseInt(1);
	var direction = parseInt(direction);
	
	
	
	switch(direction) {
		
		case(1):
	
			newvalue = value + 1;
		break;
		
		case(2):
	
			if(value == 1 ) 
			{
				newvalue = value;
			} 
			else 
			{
				newvalue = value - 1;
			}
		break;		
			default:

			newvalue = value;
	}
	obj.innerHTML = newvalue;
	
}



function checkAmonts(objid, value, uri, prodid) {
	if(document.getElementById(objid)!=undefined) {
		if(parseInt(document.getElementById(objid).value)!=parseInt(value)) {
			_update_cart(prodid, document.getElementById(objid).value, uri)
			//document.location.href=uri;
		}	
	}	
}