/*function to handle the email a friend feature on product pages*/
function P7_swapClass(){ //v1.4 by PVII
var i,x,tB,j=0,tA=new Array(),arg=P7_swapClass.arguments;
if(document.getElementsByTagName){for(i=4;i<arg.length;i++){tB=document.getElementsByTagName(arg[i]);
 for(x=0;x<tB.length;x++){tA[j]=tB[x];j++;}}for(i=0;i<tA.length;i++){
 if(tA[i].className){if(tA[i].id==arg[1]){if(arg[0]==1){
 tA[i].className=(tA[i].className==arg[3])?arg[2]:arg[3];}else{tA[i].className=arg[2];}
 }else if(arg[0]==1 && arg[1]=='none'){if(tA[i].className==arg[2] || tA[i].className==arg[3]){
 tA[i].className=(tA[i].className==arg[3])?arg[2]:arg[3];}
 }else if(tA[i].className==arg[2]){tA[i].className=arg[3];}}}}
}

function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

function prepareInputsForHints() {
	var inputs = document.getElementsByTagName("input");
	for (var i=0; i<inputs.length; i++){
		// test to see if the hint span exists first
		if (inputs[i].parentNode.getElementsByTagName("span")[0]) {
			// the span exists!  on focus, show the hint
			inputs[i].onfocus = function () {
				this.parentNode.getElementsByTagName("span")[0].style.display = "inline";
			}
			// when the cursor moves away from the field, hide the hint
			inputs[i].onblur = function () {
				this.parentNode.getElementsByTagName("span")[0].style.display = "none";
			}
		}
	}
	// repeat the same tests as above for selects
	var selects = document.getElementsByTagName("select");
	for (var k=0; k<selects.length; k++){
		if (selects[k].parentNode.getElementsByTagName("span")[0]) {
			selects[k].onfocus = function () {
				this.parentNode.getElementsByTagName("span")[0].style.display = "inline";
			}
			selects[k].onblur = function () {
				this.parentNode.getElementsByTagName("span")[0].style.display = "none";
			}
		}
	}
}
addLoadEvent(prepareInputsForHints);