var scwidth = screen.width;
var scheight = screen.height;

function show_image(img){
	var wtop=(scheight-600)/2;
	var wleft=(scwidth-600)/2;
	var tlink="show_image.php?img="+img;
	var opt="width=600px,height=600px,top="+wtop+",left="+wleft+",addressbar=0,toolbar=0,menubar=0,statusbar=0,resizable=1,scrollbars=1";
	var ntask=window.open(tlink,"win_img",opt);
}

function show_prod_detail(id){
	var wtop=(scheight-600)/2;
	var wleft=(scwidth-700)/2;
	var tlink="show_prod_detail.php?product_id="+id;
	var opt="width=700px,height=600px,top="+wtop+",left="+wleft+",addressbar=0,toolbar=0,menubar=0,statusbar=0,resizable=1,scrollbars=1";
	var ntask=window.open(tlink,"prod_detail",opt);
}

function scrolltop(){
	document.getElementById('lefttbar').style.pixelTop=document.body.scrollTop
	timer=setTimeout("scrolltop()",1)
}

function reloadme(){
	window.location.reload();
}

function IsNumeric(sText){
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;
   for (i = 0; i < sText.length && IsNumber == true; i++){
      Char = sText.charAt(i);
      if (ValidChars.indexOf(Char) == -1){
         IsNumber = false;
      }
   }
   return IsNumber;
}

function getPageCoords (element) {
     var coords = {x: 0, y: 0};
     while (element) {
       coords.x += element.offsetLeft;
       coords.y += element.offsetTop;
       element = element.offsetParent;
     }
     return coords;
}

function scrolltocoord(ix,iy){
	window.scrollTo(ix, iy);
}

function getCheckedValue(radioObj) {
	if(!radioObj)
		return "";
	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			return radioObj[i].value;
		}
	}
	return "";
}


function validate_search(){
	var t = getCheckedValue(document.searchform.type);
	var tx = document.searchform.search.value;
	if(t!="" && tx!=""){
		return true;
	}else{
		alert("Both criteria are required for searches!!");
		return false;
	}
}

function settimer(rr){
	if(rr==1)
		setTimeout("reloadme()",60000);
	else if(rr==2)
		setTimeout("reloadme()",120000);
	else if(rr==5)
		setTimeout("reloadme()",300000);
	else if(rr==10)
		setTimeout("reloadme()",600000);
	else if(rr==15)
		setTimeout("reloadme()",900000);
	else if(rr==30)
		setTimeout("reloadme()",1800000);
	else if(rr==60)
		setTimeout("reloadme()",3600000);
}