function toggleTabs(tab) {
	var tabImages = document.getElementById('prodNav').getElementsByTagName('img');
	var tabDivs = document.getElementById('prodContent').getElementsByTagName('div');
	var selTab = document.getElementById(tab+'-tab');
	var selDiv = document.getElementById(tab+'-content');
	
	for (var i = 0; i < tabImages.length; i++) {
		var src = tabImages[i].getAttribute('src');
		var ftype = src.substring(src.lastIndexOf('.'), src.length);
		if  ( tabImages[i].getAttribute('src').indexOf('-sel') != -1) {
			var nuSrc = tabImages[i].getAttribute('src').replace('-sel'+ftype, ftype);
			tabImages[i].setAttribute('src', nuSrc);
		}
	}
	var thsSrc = selTab.getAttribute('src');
	var thsftype = thsSrc.substring(src.lastIndexOf('.'), src.length);
	var selSrc = selTab.getAttribute('src').replace(ftype, '-sel'+ftype);
	selTab.setAttribute('src', selSrc);
	
	for (var i = 0; i < tabDivs.length; i++) {
		if (tabDivs[i].id.indexOf('content') != -1) {
			tabDivs[i].style.display = 'none';
		}
	}
	selDiv.style.display = 'block';

}




function checkDecimal(objStr){
    var objNumber;
    if(isNaN(objStr) && objStr!=''){
        alert('Value entered is not numeric');
        objNumber = '0.00';
    }
    else if(objStr==''){
        objNumber = '0.00';
    }
    else if(objStr.indexOf('.')!=-1){
        if(((objStr.length) - (objStr.indexOf('.')))>3){
            objStr = objStr.substr(0,((objStr.indexOf('.'))+3));
        }
        if(objStr.indexOf('.')==0){
            objStr = '0' + objStr;
        }
        var sLen = objStr.length;
        var TChar = objStr.substr(sLen-3,3);
        if(TChar.indexOf('.')==0){
            objNumber = objStr;
        }
        else if(TChar.indexOf('.')==1){
            objNumber = objStr + '0';
        }
        else if(TChar.indexOf('.')==2){
            objNumber = objStr + '00';
        }
    }
    else{
        objNumber = objStr + '.00';
    }
}

//Calculate Amount Saved

function roundNumber(num) {
	var result = num.toFixed(2)
	return result;
}
	
function filterNum(str) {
	re = /\$/g;
	// remove special characters like "$" and "," etc...
	return str.replace(re, "");	
}