function removeSpecialChars(input){
	input =  input.replace(/[^a-zA-Z 0-9]+/g,'');
	return input;
}

function cleanTextArea(){
	var x = document.getElementsByTagName('textarea');
	var tareacount=0;
	while(tareacount!=x.length){
		if(x[tareacount].value == 'Enter free text here'){
			x[tareacount].value='';
		}
		tareacount++;
	}
}


function isNumber(elem){
	var str = elem.value;
	if (isNaN(str)){
		return true;
	} else {
		return false;
	}
}


function replaceAt(item, before, after){
item.href = 'mailto:'+ before + 'ATOBJECT' + after;
item.href = item.href.replace(/ATOBJECT/,'@');
}