function layerSetup(id,visibility) {
	if(document.getElementById) {
		this.obj = document.getElementById(id).style;
		this.obj.visibility = visibility;
		return this.obj;
	}
	else if(document.all) {
		this.obj = document.all[id].style;
		this.obj.visibility = visibility;
		return this.obj;
	}
	else if(document.layers) {
		this.obj = document.layers[id];
		this.obj.visibility = visibility;
		return this.obj;
	}
}

function visVisible(param) {
	new layerSetup(param,'visible');
}

function visHidden(param){
	new layerSetup(param,'hidden');
}

function MM_swapImgRestore() { //v3.0
	var i,x,a=document.MM_sr; 
	for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
	var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
	var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
	if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
	var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
	d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
	if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
	for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
	if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
	var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
	if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function IsvalidEmail(mailid) {		
	var strValue=mailid;
	var objRegExp  = /(^[a-z]([a-z_\.]*)@([a-z_\.]*)([.][a-z]{3})$)|(^[a-z]([a-z_\.]*)@([a-z_\.]*)(\.[a-z]{3})(\.[a-z]{2})*$)/i;
	return objRegExp.test(strValue);

}

function Trim(s) {
	while ((s.substring(0,1) == ' ') || (s.substring(0,1) == '\n') || (s.substring(0,1) == '\r')) {
		s = s.substring(1,s.length);
	}
	
	while ((s.substring(s.length-1,s.length) == ' ') || (s.substring(s.length-1,s.length) == '\n') || (s.substring(s.length-1,s.length) == '\r')) {
		s = s.substring(0,s.length-1);
	}
	return s;
}

function IsNumeric(strString) {
	var objRegExp  =  /(^-?\d\d*\.\d*$)|(^-?\d\d*$)|(^-?\.\d\d*$)/;
	return objRegExp.test(strValue);
}


function validateform(evt) {
	if (evt.keyCode == 13) {
		submitform();
	}
}
// Checking checkbox
function chk_checkbox(array_fields) {
	var i;
	for(i = 0; i < array_fields.length; i++) {	
		if (array_fields[i].checked==true) 
		    return true;
	}
	return false; 
}
function formvalidate(array_fields,array_message) {
	var alertfields="";
	var setfocus="";
	var i;
	for(i = 0; i < array_fields.length; i++) {
		if(Trim(document.getElementById(array_fields[i]).value) == "") {
			alertfields+="- " + array_message[i] + "\n";
			if (setfocus=="") {
				 setfocus=array_fields[i];
			}
		} else if(Trim(document.getElementById(array_fields[i]).value) != "" && 
			document.getElementById(array_fields[i]).getAttribute('fieldtype')=="email" && 
			!IsvalidEmail(Trim(document.getElementById(array_fields[i]).value))) {
			alertfields+="- Valid " + array_message[i] + "\n";
			if (setfocus=="") {
				 setfocus=array_fields[i];
			}
		}
	}
	
	if (alertfields!="") {
		alert("The following field(s) cannot be left blank:\n\n"+alertfields+"\nPlease fill these fields.");
		document.getElementById(setfocus).focus();
		return false;		
	}
	return true;
}