function ShowHide(id1) {
		if(id1 != ''){
	  		openfield(id1);
	  	}
	}
	
	function openfield(id) {
		var itm = null;
		if (document.getElementById) {
			itm	= document.getElementById(id);
			var pic	= id+'_img';
			itm_pic	= document.getElementById(pic);
	  	} else if (document.all){
			itm = document.all[id];
	  	} else if (document.layers){
			itm = document.layers[id];
	  	}

	  	if (!itm) {
	  		// do nothing
	  	}
	  	else if (itm.style) {
			if (itm.style.display == "none") {
				itm.style.display = "";
				itm_pic.src	= "./images/-.gif";
			}
			else { 
				itm.style.display = "none";
				itm_pic.src	= "./images/+.gif";
			}
		}
		else {
			itm.visibility	= "show";
			itm_pic.src	= "./images/-.gif";
		}
	}

function loadcat(cat){
	parent.main.window.location.href	= "parts.php?c="+cat;
	parent.info.window.location.href	= "info.php?c="+cat;
}