// Show/hide named element:
function showHideProductInput(name) {
	if(document.getElementById(name).style.display=='none') {
		document.getElementById(name).style.display='inline'; 
	} else {
		document.getElementById(name).style.display='none';
	}
}

function ismaxlength(obj){
	var mlength=obj.getAttribute? parseInt(obj.getAttribute("maxlength")) : "";
	if (obj.getAttribute && obj.value.length>mlength) {
		obj.value=obj.value.substring(0,mlength)
	}
}