/**
 * <p>Description: </p>
 * 
 * @author tianyu * Modification&Comments on 2005-7-28
 * 
 * @version 1.50
 * 
 * <p>Copyright: Copyright (c) 2004 2005</p>
 * <p>Company: 清华同方科技有限公司</p>
 */
 
function setHyperLink(id, urlName) {
	var node = document.getElementById(id);
	node.href = url[urlName];
}

function checkInt(value) {
	var iValue = 0;
	
	if ( isNaN(value) ) {
		return false;
	} else {
		return true;
	}
	
	/* speical code for IE4.0 !!!!
	try{
		iValue = parseInt(value);
		return true;
	} catch (e) {
		// Error
		// alert(e);
		return false;
	}*/
} // end checkInt()



function spinUp(obj) {
	if ( checkInt (obj.value) ){
		obj.value = parseInt(obj.value) + 1;
	} else {
		alert(">" + obj.value +"< ist not a valid Number!");
	}
}



function spinDown(obj) {
	if ( checkInt (obj.value) ){
		obj.value = parseInt(obj.value) - 1;
	} else {
		alert(">" + obj.value +"< ist not a valid Number!");
	}
}


function inc(obj){
	var val = parseInt(obj.value);

	if (val == Number.NaN) {
		alert("[" + val + "] is not a Number!");
	} else {
		val++;
		obj.value = val;
	}
}

function dec(obj){
	var val = parseInt(obj.value);

	if (val == Number.NaN) {
		alert("[" + val + "] is not a Number!");
	} else {
		val--;
		obj.value = val;
	}
}