var isff=0;
var isie=0;
var browser="";

if (navigator.appVersion.indexOf("MSIE")!=-1){
	isie=1;
	browser="IE";
}
if (navigator.userAgent) {
if (navigator.userAgent.indexOf("Mozilla")!=-1) {
	isff=1;
	browser="Firefox";
}
}
function gu_setnodebyid(id,text) {
	var node=document.getElementById(id);
	node.lastChild.nodeValue=text;	
}

function gu_setstyle(node,style) {
	if (this.isie) {
		var sa=style.split(";");
		var i=0;
		while (i<sa.length) {
			var st=sa[i].split(":");
			if (st.length==2) {
				node.style.setAttribute(st[0],st[1]);
			}
			i++;
		}
		
	}
	if (this.isff) {
		node.setAttribute('style',style);
	}
}
function gu_setstyleid(id,style) {
	var node=document.getElementById(id);
	gu_setstyle(node,style);
}
function gu_setdisplay(node,style) {
	if (this.isie) {
		node.style.display=style;
		
	}
	if (this.isff) {
		node.style.display=style;
	}
}
function gu_setdisplayid(id,style) {
	var node=document.getElementById(id);
	gu_setdisplay(node,style);
}

function validemail(email) {
    alert(email);
    if (window.RegExp) {
	var r1s = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
	var r2s = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$";
	var r1 = new RegExp(r1s);
	var r2 = new RegExp(r2s);
	if (!r1.test(email) && r2.test(email)) {
	    return true;
	}
    } else {
	if(email.indexOf("@") >= 0)
	    return true;
    }

    return false;
}